Flexible tubular wall actuator with end-mounted strain gauge

Details Flexible tubular wall actuator with end-mounted strain gauge Flexible tubular wall actuator with end-mounted strain gauge

1988-04-04

1989-08-29

Garrett, Robert E.

Expansible chamber devices

With inspection window in expansible chamber wall portion

With lock

92 92, F15B 1502, F01B 3112

Patent

active

048606391

ABSTRACT:
A pneumatic actuator includes a tubular body made of a rubber-like elastic material and a braided structure made of organic or inorganic high-tensile-strength fibers reinforcing an outside of the tubular body. Closure members sealingly close ends of the tubular body; at least one of the closure members has a fluid connecting passage. The tubular body deforms to expand its diameter when pressurized fluid is introduced through the connecting passage to cause contractive force in the longitudinal direction. Contraction-detecting strain gauges at one closure member provide signals corresponding to the contractive force of the actuator.

REFERENCES:
patent: 3160836 (1964-12-01), Farley
patent: 3611881 (1971-10-01), Little
patent: 4058178 (1977-11-01), Shinohara et al.
patent: 4294163 (1981-10-01), Boehringer
patent: 4615420 (1986-10-01), Takagi et al.
Baumeister, T. et al., Marks' Standard Handbook for Mechanical Engineers, New York, N.Y.: McGraw Hill Co. 1979, pp. 5-52-5-53.
Holman, J. P., Experimental Methods for Engineers, New York, N.Y.: McGraw Hill Book Co. 1978, pp. 357-358.
Perry. C. C. et al., The Strain Gage Primer, McGraw Hill Book Co., New York, N.Y., 1962, p. 249.

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